(1971)
linocut
(1988)
etching
(1947)
lithograph
(1932)
(1965-66)
sugar aquatint
(1973)
etching embossing
photo-screenprint and embossing
(1935)
(1800)
engraving
woodcut
(1985)
etching and aquatint
(1986)
softground-etching
(1955-56)